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Publication numberUS6219874 B1
Publication typeGrant
Application numberUS 08/765,572
PCT numberPCT/US1995/008740
Publication dateApr 24, 2001
Filing dateJul 12, 1995
Priority dateJul 13, 1994
Fee statusPaid
Also published asUS6505373, US6807703, US20010013151, US20030084533
Publication number08765572, 765572, PCT/1995/8740, PCT/US/1995/008740, PCT/US/1995/08740, PCT/US/95/008740, PCT/US/95/08740, PCT/US1995/008740, PCT/US1995/08740, PCT/US1995008740, PCT/US199508740, PCT/US95/008740, PCT/US95/08740, PCT/US95008740, PCT/US9508740, US 6219874 B1, US 6219874B1, US-B1-6219874, US6219874 B1, US6219874B1
InventorsMaria Van Gelder, Kristie Jane Morgan
Original AssigneeThe Procter & Gamble Co.
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Resiliently flexible bristle bearing head toothbrush
US 6219874 B1
Abstract
A toothbrush having a handle and a resiliently flexible bristle-bearing head. The head has a pair of opposing faces with the bristles mounted on one face. Each opposing face has a groove, the groove on each face being substantially parallel to the groove on the opposing face. The pair of substantially parallel grooves form a flexible hinge within the head, allowing the toothbrush head to flexibly conform from a concave profile to a convex profile to suit the labial surface of the teeth or to avoid damage to the gums.
Images(4)
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Claims(7)
What is claimed is:
1. A toothbrush, having a handle and at one end thereof a resiliently flexible bristle-bearing head, the head having a pair of opposing faces with the bristles mounted on one face, each opposing face further having a groove, the groove on each face being substantially parallel to the groove on the opposing face, the pair of substantially parallel grooves forming a flexible hinge within the head and the grooves follow generally curved paths.
2. A toothbrush, having a handle and at one end thereof a resiliently flexible bristle-bearing head, the head having a pair of opposing faces with the bristles mounted on one face, each opposing face further having a groove, the groove on each face being substantially parallel to the groove on the opposing face, the pair of substantially parallel grooves forming a flexible hinge within the head and the grooves are oriented generally parallel to a longitudinal axis of the handle.
3. A toothbrush, having a handle and at one end thereof a resiliently flexible bristle-bearing head, the head having a pair of opposing faces with the bristles mounted on one face, each opposing face further having a groove, the groove on each face being substantially parallel to the groove on the opposing face, the pair of substantially parallel grooves forming a flexible hinge within the head and the grooves are filled with an elastomeric material.
4. A toothbrush, having a handle and at one end thereof a resiliently flexible bristle-bearing head, the head having a pair of opposing faces with the bristles mounted on one face, each opposing face further having a groove, the groove on each face being substantially parallel to the groove on the opposing face, the pair of substantially parallel grooves forming a flexible hinge within the head and when the toothbrush is in its normal stress-free configuration, the free ends of bristles lying along a transverse axis of the brush form a generally concave profile.
5. A toothbrush, having a handle and at one end thereof a resiliently flexible bristle-bearing head, the head having a pair of opposing faces with the bristles mounted on one face, each opposing face further having a groove, the groove on each face being substantially parallel to the groove on the opposing face, the pair of substantially parallel grooves forming a flexible hinge within the head and when the toothbrush is in its normal stress-free configuration, the free ends of bristles lying along a longitudinal axis and a transverse axis of the brush form a generally concave profile.
6. A toothbrush, having a handle and at one end thereof a resiliently flexible bristle-bearing head, the head having a pair of opposing faces with the bristles mounted on one face, each opposing face further having a groove, the groove on each face being substantially parallel to the groove on the opposing face, the pair of substantially parallel grooves forming a flexible hinge within the head and the grooves follow generally zigzag paths.
7. A toothbrush according to claim 1, 3, 4, 5 or 6 wherein the grooves are oriented generally transverse to a longitudinal axis of the handle.
Description
FIELD OF THE INVENTION

The present invention relates to toothbrushes, more particularly to toothbrushes which comprise a flexible brush head with a generally concave bristle surface (i.e. the surface defined by the free ends of the bristles) in order to conform the toothbrush to the curvature of human teeth.

BACKGROUND OF THE INVENTION

The configuration of human teeth requires that the ideal bristle contour for toothbrushes for brushing the buccal or outside surfaces of teeth be concave and that the ideal bristle contour for brushing the lingual or inside surfaces of teeth be convex. Most brushes have a single piece head which is of comparable thickness to the handle and which, consequently, is relatively rigid and of a fixed curvature or configuration. Some brushes may, however, incorporate a means for allowing the head to flex relative to the handle, as described for example in EP-A-371,293. Even so, such brushes have limited effectiveness. Other brushes are known which are adjustable into several different but fixed configurations. Adjustable toothbrushes are often difficult to manipulate and may be unreliable.

A further drawback of conventional brushes is that pressing the brush sufficiently hard against the teeth to get good cleaning risks damaging or discomforting the softer, adjacent gums. To a certain extent this can be solved by modifying the configuration of the brush, or by varying bristle hardness or length, though again, a single configuration cannot be optimum for all circumstances.

U.S. Pat. No. 4,712,267, issued to Cheng, discloses a convertible toothbrush comprising an S-shaped elongated handle of shape-retaining material having curved end regions of opposite curvature, a flexible brush block containing bristles, and a means for mounting the flexible brush block on the handle for longitudinal movement along the length of the handle. The curved portions of the handle bend the flexible block and bristles into a concave or convex configuration which corresponds to the curved configuration of the handle.

EP-A-454,625, assigned to Warner-Lambert Company, describes an adjustable curvature toothbrush whose head is in the form of a loop. A cam or slide mechanism changes the curvature of the head between concave and convex configurations. In an alternative embodiment, the head is an integral part of the handle which is in the form of a compressible closed loop, the bristle surface being in a concave configuration when the handle is in its uncompressed state, becoming convex when the handle is compressed.

EP-A-577,656, to Linsner & Fischer GmbH, discloses a toothbrush having a handle and at one end thereof a bristle-bearing head, wherein the head is in the form of two or more segments flexibly and resiliently linked to each other and/or to the handle, one or more of the segments being bristle bearing. In one embodiment this is achieved by the use of transverse, and optionally longitudinal, grooves on the opposite face of the head to the bristles. Under application of pressure in use the brush head may adopt a convex configuration. In another embodiment the handle extends into a frame into whose interior the head is resiliently linked. When pressure is applied to the centre of the brush head it adopts a concave configuration.

While the above toothbrushes provide brush heads with some degree of flexibility, none of them is entirely satisfactory, in particular, they either fail to provide both convex and concave configurations within the one embodiment or they require undue manipulation or skill on behalf of the user.

It is accordingly an object of this invention to provide a toothbrush with a head which can flexibly conform to either the convex or concave surfaces of the teeth and which provides good cleaning and is easy to manufacture and use.

It is a further object of the invention to provide a toothbrush which can clean the teeth efficiently with minimal damage to adjacent gum tissue.

SUMMARY OF THE INVENTION

According to one aspect of the present invention there is provided a toothbrush, having a handle and a resiliently flexible bristle-bearing head wherein, when the toothbrush is in its normal stress-free configuration, the free ends of bristles lying along a longitudinal and/or transverse axis of the brush form a generally concave profile.

The toothbrush head of this invention, being flexible, can flex under the action of toothbrushing so as to accommodate itself to the differing profiles of individual users' teeth. In particular, the flexible head of the toothbrush of the present invention has, in its normal stress-free configuration, a bristle profile adapted to suit the buccal surface of the teeth but, at least in preferred embodiments, can bend continuously through a flat position to a convex configuration to accommodate the lingual surface of the teeth generally better than would be the case with a conventional rigid-headed toothbrush. The head may be adapted in such a way that the outer rows of bristles can flex away from the centre to limit the pressure applied to gums when the brush head is pressed against the teeth. In all cases the head is resilient, so that when an applied force is removed, the brush head returns to its original configuration.

DETAILED DESCRIPTION OF THE INVENTION

The toothbrushes of the invention take the form of an elongated handle with, as an essential component, a resiliently flexible bristle-bearing head. At least a first part of the head is formed as an integral extension to the handle. At least one area of this part of the head is sufficiently thin that the head will bend under normal brushing forces. Preferably, the head further comprises one or more areas of a second, elastomeric material formed in or around the first part of the head, so that the whole head has a conventional, generally flattened shape but remains flexible when compared to that of a conventional brush. By flexible is meant herein that when a normal brushing force (2-4 Newtons) is applied to one end of the head, the other end being held fixed, the end to which the force is applied will deflect through an angle of at least 1 degree (the flex angle). In preferred embodiments the flex angle is at least 5 degrees, more preferably at least 10 degrees and it can be as high as 45 degrees or more. In highly preferred embodiments the flex angle is such that the head is able to bend through into a convex configuration. At least one face of the head has bristles attached thereto.

The handle of the toothbrush of the invention, and that part of the head which is an extension of the handle may be made of materials which are conventional in the manufacture of toothbrushes, especially plastics materials. Suitable plastics materials include, for example, polyamides and polypropylenes. An example of a suitable polypropylene is the material ‘Polypropylene PM 1600’ (marketed by Shell), having a modulus of elasticity (ISO 178) of 1500 MPa and a hardness (ISO 868) of 75 Shore A. The handle itself is generally rigid and may be of a shape which is conventional in the manufacture of toothbrushes. Optionally, the handle may comprise a neck portion which is more flexible than the rest of the handle, as known in the art, provided that it is sufficiently rigid that, in use, when force is applied to the head, particularly when brushing the teeth, the head may still flex in the manner and to the extent described above.

In a preferred aspect of the invention, the head has one or more bristle-bearing faces and at least one bristle-bearing face of the head forms a generally concave configuration when the brush is in its normal unstressed state The face of the head may be concave along either or both of the transverse and longitudinal axes of the head. Where the face is concave along the longitudinal axis, the radius of curvature may vary along the length of the head. The radius of curvature is preferably from 10 to 500 mm, more preferably from 15 to 250 mm, especially from 25 to 150 mm.

In one embodiment the first part of the head comprises one or more extensions which are integral with the handle, and of such thickness that the desired flexibility is achieved whilst maintaining structural integrity of the head under expected conditions of use. The extensions are generally substantially thinner than the handle. Preferably there is only one such extension. The head may vary in thickness along its length in order to control the profile obtained as the head is flexed under external bending forces. In this embodiment the head extensions are preferably at least partially, and more preferably wholly, surrounded by an elastomeric material, said material also filling any gaps between multiple extensions. The extension(s) may carry some surface ribbing or detailing to assist the adhesion of the elastomer to them.

In yet further embodiments the head has a pair of opposing faces with bristles mounted on one of said pair and the same and/or the opposite face having one or more linear or non-linear grooves therein. The grooves create thin hinges which make the head flexible, the portions of the head between the grooves preferably being of comparable thickness to a conventional non-flexible head.

The grooves can be oriented generally transverse or parallel to the longitudinal axis of the handle and can follow generally curved or zig-zag paths. In particular the grooves may run longitudinally along the head to allow the outer longitudinal rows of bristles to flex away from the inner ones. Preferably there will instead or in addition be transverse grooves so that the head can bend along the longitudinal axis.

The grooves can be of variable width and depth and the distances between grooves can also be varied. In this manner the flexibility of the head along the length and/or across the breadth of the head can be modified. Preferably only the transverse grooves are varied in this way.

One or more of the grooves, preferably all, can be wholly or partially filled with an elastomeric material. In this way too the flexibility and/or resilience of the head may be varied and contamination of the grooves by, for example, toothpaste deposits may be reduced or avoided completely. The colour of the elastomeric material may be the same as that of the material of the head, or it may be different thereby achieving a distinctive striped or otherwise patterned appearance.

The grooves may be generally straight or they may follow curved or zig-zag paths. Non-linear grooves help to offset compression stress in the elastomeric material filling the grooves as the head bends.

Suitable elastomeric materials herein are thermoplastic elastomers with a Shore hardness of 30-80 such as Santoprene and Thermoflex. A particularly suitable elastomer is ‘PTS Thermoflex 75’ (marketed by Plastic Technologie Service, Germany), having a modulus of elasticity (ISO 178) of 100 MPa and a hardness (ISO 868) of 80 Shore A. The elastomers may optionally be mixed with a suitable plasticiser or foaming agent to make them more compressible.

The bristles can be made of any of-the materials well known in the art. Suitable bristle materials herein are polyester and nylon, such as Dupont Nylon 612. The bristles are preferably of circular cross-section but can also be of other cross-sections including, but not limited to, rectangular, hexagonal and trilobular. Furthermore, the diameter and length of the bristles can vary within the usual dimensions known by a person skilled in the art, provided that, when the brush is in the unstressed state, the overall objective of having a generally concave bristle surface is still met. The bristles are generally conventionally grouped into tufts and can be attached to the brush head by a variety of processes. Preferred processes herein are stapling and fusion. The bristles can be inserted into either or both of the head extension and the elastomeric material. Cutting and end-rounding of the bristles can be done using any of the methods commonly known in the art.

In use, the toothbrush of this invention can be used for cleaning the teeth by an entirely conventional toothbrushing hand action, preferably in a manner recommended by dental health authorities. The toothbrush of the invention can also be used in electrically driven toothbrushes or children's toothbrushes.

The invention will now be described by way of example only, with reference to the accompanying drawings in which:

FIG. 1 is a partial side view of a first embodiment of the invention, depicting a toothbrush head with transverse grooves. Although the head is flat in its unstressed state, the bristles are cut to different lengths so that the bristle surface is concave along the longitudinal direction.

FIG. 2 is a similar view of a second embodiment illustrating a toothbrush head where the first part is formed by a single extension integral with the handle and is further surrounded by elastomer. The head is pre-formed so that it is naturally concave in its unstressed state.

FIG. 3 is a partial side view of a third embodiment showing a grooved toothbrush head, the face of which is concave in its unstressed configuration and illustrating how the toothbrush head can bend from a concave configuration to a convex one to suit both buccal and labial surfaces of the teeth (shown in plan).

FIG. 4 is a plan view of a toothbrush head, constituting a fourth embodiment of the invention and which comprises three thin longitudinal extensions surrounded by elastomer. The head is able to bend around both longitudinal and transverse axes.

FIG. 5 is a transverse section through the head of FIG. 4 along the line AA′. The bristles are cut so that the bristle surface is naturally concave along the transverse axis.

FIG. 6 is a plan view of a fifth embodiment wherein the head has both transverse and longitudinal grooves. The grooves are filled with elastomer.

FIG. 7 is a transverse section through a toothbrush head constituting a sixth embodiment with two longitudinal grooves on each face. The head is pre-formed so that its face is naturally concave along the transverse axis. The grooves are filled with elastomer.

FIG. 8 shows how the longitudinal outer rows of the brush head of FIG. 7 can flex away from the gums as force is applied when brushing.

FIGS. 9 and 10 are plan views of heads constituting further embodiments with chevron-like and waved transverse, elastomer-filled grooves.

FIG. 11 is a partial plan view of a still further embodiment whose head has transverse grooves wherein, along the centre line of the head, the grooves are the full depth of the head so that two rows of approximately parallel hinges are created.

FIG. 12 is a partial side view of yet another embodiment showing a side view of a head with variable depth grooves, giving greater flexibility nearer the neck of the brush.

Referring to FIG. 1, a toothbrush head (1) is formed integrally at one end of a handle (2). The head (1) has two substantially parallel faces, and in a top face are mounted bristles distributed in a plurality of tufts (3). The upper and lower faces carry a number of generally parallel transverse grooves (4), leaving a thin, flexible hinge of head material (5). The bristles are cut so that the bristle surface (6) is concave when the brush is in its natural unstressed state.

In FIG. 2 a first part of the brush head is formed by a single thinned extension (7) of the handle (2). The extension is surrounded by an elastomer (8) so that the whole head is of comparable thickness to a conventional brush. The head is preformed into a naturally concave configuration but is sufficiently flexible that, under normal brushing forces the head can be made to bend back into a convex configuration. The bristle tufts (3) in this example are of approximately equal length and are fused into the elastomeric material.

In FIG. 3 the bead is pre-formed into a naturally concave configuration (9) ideally suited to clean the buccal surface of teeth (10). Transverse grooves (4) confer flexibility on the brush head so that under normal brushing forces the head can be made to bend back into a convex configuration (11) more suited to the labial surface (12) of the teeth. The grooves may additionally be filled with an elastomeric material, optionally of a different colour to the head material to give a distinctive appearance.

In FIGS. 4 and 5 the head (1) comprises multiple extensions (13) of the handle, surrounded by elastomer (8) so that the overall shape of the head is conventional, whilst being flexible in both longitudinal and transverse directions. The bristle tufts (3) are shown fused into the elastomer and are cut so that the bristle surface (6) is generally concave.

In FIG. 6, the head (1) carries both transverse (4) and longitudinal (14) grooves. The grooves are filled with elastomer. Holes (15) are drilled into one face of the head in the regions of normal thickness between the grooves (16) to accommodate bristle tufts by a conventional stapling process.

In FIGS. 7 and 8 the head (1) is pre-formed so that it is naturally concave along the transverse axis. Longitudinal grooves (14) on both upper and lower faces of the head confer flexibility. In this way the outer rows of bristles (17) can flex away from the gums (18) as the teeth (19) are brushed, thus avoiding gum damage.

FIGS. 9 and 10 show heads with non-linear, transverse, elastomer-filled grooves. The grooves are in the form of chevrons (20) or waves (21). In both cases, the grooves give the brush a distinctive appearance and, further, help to offset compression stress in the elastomeric material within the grooves as the brush bends. The figures show the back of the head, which becomes compressed as the brush head bends towards a convex configuration.

In FIG. 11 the head has transverse elastomer-filled grooves (4). For clarity the elastomer is not shown. Around the centre axis of the brush BB′ the grooves pass right through the brush head (22) leaving a row of hinges (5) on each side of the head. The bristle tufts (3) are conventionally stapled into the thicker parts of the head.

In FIG. 12 the depth of the grooves (4) is shown to increase in the direction towards the handle (2), the deepest grooves being closest to the end of the head nearest to the handle. This results in the part of the head closest to the handle (2) being more flexible by virtue of having thinner hinges than the part of the head furthest from the handle. The grooves are filled with elastomer.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US669402Apr 21, 1900Mar 5, 1901Carl RoeseTooth-brush.
US759490Dec 8, 1902May 10, 1904Florence Mfg CompanyTooth-brush.
US876317Apr 24, 1906Jan 14, 1908Alba C BoothHandle of brushes and other manicuring articles.
US882021Jan 26, 1907Mar 17, 1908John SchigelinskyBottle-cleaner.
US914501Apr 6, 1908Mar 9, 1909Donald MceachernTooth-brush.
US924194May 8, 1908Jun 8, 1909Florence Mfg CompanyBrush-machine.
US1018927Jul 14, 1911Feb 27, 1912Jules J SarrazinTooth-brush.
US1337173Sep 30, 1919Apr 13, 1920David G WhiteReversible toothbrush
US1440785Apr 26, 1920Jan 2, 1923Western Bottle Mfg CompanyToothbrush
US1456535May 7, 1919May 29, 1923Cartwright Mfg CompanyToothbrush
US1642465Apr 15, 1927Sep 13, 1927Roscoe M SheetzTooth and massage brush
US1860924 *May 18, 1931May 31, 1932George Cooke RupertToothbrush
US1901646 *Apr 3, 1931Mar 14, 1933Harry W HicksToothbrush
US1927365Mar 15, 1933Sep 19, 1933Natal FrolioToothbrush
US2003243Jul 29, 1933May 28, 1935Ann WatsonToothbrush
US2122619Sep 5, 1936Jul 5, 1938Mcmath John FDental instrument
US2125783Aug 10, 1937Aug 2, 1938Herbert H HeemanDoor handle
US2172624Aug 25, 1937Sep 12, 1939Robert Gabriel Romani YTooth brush
US2179266Oct 8, 1937Nov 7, 1939Emery D LukenbillGrip attachment for brush handles
US2254365 *Jun 6, 1939Sep 2, 1941Griffith Edward EConvertible toothbrush
US2266195Dec 13, 1938Dec 16, 1941Hallock Robert LayToothbrush
US2326632Oct 3, 1941Aug 10, 1943Benjamin FriedmanInterchangeable toothbrush
US2428268Jun 8, 1945Sep 30, 1947John DrubkoCoke breaker
US2438268 *Jun 3, 1946Mar 23, 1948Louis R BresslerFlexible bristle head toothbrush
US2443297 *Feb 8, 1947Jun 15, 1948Bressler Louis RToothbrush
US2650383Mar 7, 1952Sep 1, 1953Bressler Louis RToothbrush with a flexible head
US2676350Mar 16, 1953Apr 27, 1954Stanley Home Products IncToothbrush with a flexible head
US2685703 *Apr 27, 1949Aug 10, 1954Edward F DellenbachToothbrush
US2807820Jul 1, 1952Oct 1, 1957Dinhofer MiltonFlexible brush head and means to retain it in a predetermined position
US3082457 *May 26, 1961Mar 26, 1963Lucibello Florio RSelf-adapting tufts for brushes
US3129449Sep 11, 1961Apr 21, 1964Bernard CyzerToothbrush with shuttingly oscillatingly and rotatingly movable cleaning and massaging elements
US3152349 *Jul 22, 1963Oct 13, 1964Du PontToothbrush
US3188672Dec 18, 1963Jun 15, 1965Johnson & JohnsonBrush
US3188673Mar 4, 1964Jun 15, 1965Prophylactic Brush CoToothbrush
US3253292 *May 15, 1964May 31, 1966Arthur M HerschensohnHair brushes
US3279858Feb 1, 1965Oct 18, 1966Evans & Son Ltd JApparatus for operating on brush stocks
US3306670Oct 11, 1963Feb 28, 1967Heinz ZahoranskyBrush drilling and/or filling machine with workpiece holder and storage receptacle for the workpieces
US3378870Mar 22, 1967Apr 23, 1968Matsunaga KenjiToothbrush
US3398421Mar 28, 1967Aug 27, 1968Rashbaum AbrahamToothbrush having pivotal bristle carrying members
US3583019Sep 12, 1968Jun 8, 1971Conklin Carroll C JrDisposable tooth cleaner
US3614165Dec 9, 1969Oct 19, 1971Ebser MaschfA work holder for processing brush bodies
US3667809Aug 13, 1970Jun 6, 1972Evans & Son Ltd JApparatus for operating on brush stocks
US3678528May 5, 1970Jul 25, 1972Johan Arend Frederik HaijeTooth brush
US3722020Jan 4, 1971Mar 27, 1973J HillsToothbrush with concavity formed by bristle ends
US3742549Feb 3, 1972Jul 3, 1973G CohenContoured toothbrush
US3792504 *Sep 25, 1972Feb 19, 1974D SmithHygienic toothbrush
US3914081Dec 7, 1972Oct 21, 1975Aoki KatashiApparatus for injection molding two-colored products
US4020521Apr 11, 1975May 3, 1977Velasquez Robert LToothbrush
US4031587Jul 28, 1975Jun 28, 1977Deepen Enterprises, Inc.Toothbrush for canines
US4240452Sep 13, 1979Dec 23, 1980Jean San BauElastic base toothbrush
US4283808Sep 17, 1979Aug 18, 1981Beebe Lee MGripping device for tooth brushes
US4288883 *Sep 24, 1979Sep 15, 1981Josef DolinskyCombined tooth brush and gum massaging
US4416166Mar 30, 1982Nov 22, 1983Oakley, Inc.Handle grip
US4488328Jan 24, 1983Dec 18, 1984Hyman Richard MFloating head toothbrush
US4520526Jun 22, 1984Jun 4, 1985Peters Charles WResiliently flexible toothbrush
US4570282Sep 14, 1984Feb 18, 1986Kaufman Martin HToothbrush
US4633542Apr 12, 1985Jan 6, 1987Laboratoires PharmascienceBrush having resiliently retractable bristles, in particular for brushing surfaces of complex shape, such as teeth
US4691405Jul 29, 1985Sep 8, 1987Reed Joseph CToothbrush having adjustable bristle-mounted tabs
US4694844Feb 22, 1985Sep 22, 1987Berl Marta NToothbrush
US4712267Dec 4, 1986Dec 15, 1987Cheng Peter S CConvertible toothbrush
US4712304Jul 31, 1985Dec 15, 1987Danilo SanelliKnife having a handle coated with an elastomer, particularly for professional uses
US4721021Sep 10, 1986Jan 26, 1988Kusznir Phillip SHandle structure
US4739536Jul 7, 1986Apr 26, 1988Wera Werk Hermann Werner Gmbh & Co.Screwdriver handgrip having harder and softer zones
US4768837Feb 26, 1986Sep 6, 1988Firma G.B. Boucherie, Naamloze VennootschapBrush body holder
US4800608Oct 5, 1987Jan 31, 1989Key John RToothbrush
US4829621Jul 9, 1986May 16, 1989Phenegar John SToothbrush
US4847936Jan 4, 1988Jul 18, 1989Contour, Inc.Toothbrush
US4864676May 30, 1987Sep 12, 1989Heinrich SchaiperTooth brush
US4882803Dec 19, 1988Nov 28, 1989Rogers Nathan JDental apparatus
US4894880Feb 3, 1989Jan 23, 1990Aznavoorian Martin PTooth brush
US4949457Aug 3, 1988Aug 21, 1990Warner-Lambert CompanySoft resilient razor handle
US5014383Mar 20, 1990May 14, 1991Costar Donald GOffset denture brush
US5027511Sep 28, 1990Jul 2, 1991The Gillette CompanyShaving system
US5046212Jan 25, 1990Sep 10, 1991Conke James R OToothbrush
US5052071Mar 29, 1989Oct 1, 1991Lingner+Fischer GmbhToothbrush with displaceable head
US5054154Oct 17, 1989Oct 8, 1991M & C Schiffer GmbhToothbrush with flexible head
US5114214Dec 13, 1988May 19, 1992Rolf BarmanProcess for producing tooth brushes and blanks for use for same
US5261665Feb 11, 1992Nov 16, 1993Robert A. Paley, Inc.Golf club grip formed of a plurality of materials and method of manufacture thereof
US5305489Apr 13, 1993Apr 26, 1994Lage Gregg LErgonomic topographic toothbrush
US5305490Apr 19, 1993Apr 26, 1994Lundgren James FToothbrush with firm grip handle
US5339482Jul 21, 1992Aug 23, 1994Johnson & Johnson Consumer Products, Inc.Toothbrush having non-slip surface
US5353464Jan 8, 1993Oct 11, 1994Atkins Marie BToothbrush construction
US5373602Dec 15, 1993Dec 20, 1994Bang; Kook B.Toothbrush
US5390572Jul 27, 1993Feb 21, 1995Vermont American CorporationTool with immproved impact and torque capabilities and having ergonomic handle
US5398369Jul 7, 1994Mar 21, 1995Chesebrough-Pond's Usa Co., Division Of Conopco, Inc.Toothbrush with pliable pressure pad
US5651158May 9, 1995Jul 29, 1997Lingner & Fischer GmbhToothbrush with resiliently flexible head
US5761759Sep 1, 1993Jun 9, 1998Jordan A/SToothbrush and method for making such toothbrush
US5774923Jun 7, 1995Jul 7, 1998Smithkline Beecham PlcToothbrush having a flexibly linked zone in its head
USD201867Nov 13, 1963Aug 10, 1965 Toothbrush
USD239221Mar 23, 1976 Title not available
USD248696Sep 2, 1976Aug 1, 1978 Tooth brush
USD259976Oct 1, 1979Jul 28, 1981Colgate-Palmolive CompanyToothbrush
USD272688May 15, 1981Feb 21, 1984Avantgarde S.P.A.Toothbrush
USD272689May 15, 1981Feb 21, 1984Avantgarde S.P.A.Toothbrush
USD272690May 15, 1981Feb 21, 1984Avantgarde S.P.A.Toothbrush
USD273635May 15, 1981May 1, 1984Avantgarde S.P.A.Toothbrush
USD276193Sep 2, 1982Nov 6, 1984Lion CorporationToothbrush
USD285263Mar 5, 1984Aug 26, 1986Stratford LaboratoriesHandle for toothbrush or flossing aid
USD289703Jun 10, 1985May 12, 1987 Tooth brush or similar article
USD289704Oct 29, 1985May 12, 1987Lever Brothers CompanyToothbrush
USD292448Mar 25, 1986Oct 27, 1987Lever Brothers CompanyToothbrush
USD319148Jan 16, 1990Aug 20, 1991 Toothbrush
USD324775Jan 19, 1990Mar 24, 1992Johnson & Johnson Consumer Products, Inc.Toothbrush handle
USD328977Sep 29, 1988Sep 1, 1992Lingner & Fischer, GmbhHandle for toothbrushes
USD334288Mar 25, 1991Mar 30, 1993Chesebrough-Pond's Usa Co., Division Of Conopco, Inc.Toothbrush
USD342160Dec 13, 1991Dec 14, 1993Colgate-Palmolive CompanyToothbrush
USD342162Dec 13, 1991Dec 14, 1993Colgate-Palmolive CompanyToothbrush
USD351732Feb 16, 1993Oct 25, 1994Johnson & Johnson Consumer Products, Inc.Toothbrush handle
CH460705A * Title not available
DE3737223A1Nov 3, 1987May 18, 1989Heinrich SchaiperToothbrush
DE9319292U1Dec 11, 1993Feb 3, 1994Schwarz Dieter Ds ProdukteAuflageelement für sanitäre Haushaltsbecken
DE9400926U1Jan 20, 1994Mar 24, 1994Wenig Ernst Dr IngDoppelkopf-Zahnbürste
WO1991019438A1 *Jun 17, 1991Dec 26, 1991Humphries Victor AToothbrush
WO1992017092A1 *Mar 21, 1992Sep 28, 1992Lingner & Fischer GmbhToothbrush having a flexibly linked zone in its head
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US6505373Apr 18, 2001Jan 14, 2003The Procter & Gamble CompanyToothbrush
US6817054 *Jun 20, 2003Nov 16, 2004Colgate-Palmolive CompanyToothbrush
US7020928Aug 26, 2003Apr 4, 2006Colgate-Palmolive CompanyToothbrush
US7024720 *Nov 16, 2004Apr 11, 2006Colgate-Palmolive CompanyToothbrush
US7174596Dec 20, 2002Feb 13, 2007Trisa Holding AgToothbrush and process for producing such a toothbrush
US7251849Aug 22, 2005Aug 7, 2007Colgate-Palmolive CompanyToothbrush
US7354112Feb 27, 2006Apr 8, 2008Trisa Holding AgToothbrush and process for producing such a toothbrush
US7430780 *Feb 8, 2005Oct 7, 2008Colgate-Palmolive CompanyToothbrush
US7445295Nov 30, 2007Nov 4, 2008Trisa Holding AgToothbrush and process for producing such a toothbrush
US7458647Nov 30, 2007Dec 2, 2008Trisa Holding AgToothbrush and process for producing such a toothbrush
US7520571Feb 11, 2008Apr 21, 2009Trisa Holding AgToothbrush and process for producing such a toothbrush
US7614111Oct 24, 2005Nov 10, 2009Colgate-Palmolive CompanyOral care implement
US7703163Jan 30, 2004Apr 27, 2010Colgate-Palmolive CompanyToothbrush with enhanced cleaning effects
US7757326Oct 30, 2003Jul 20, 2010Cologate-Palmolive CompanyToothbrush with enhanced cleaning effects
US7757333 *Jun 13, 2005Jul 20, 2010Glaxosmithkline Consumer Healthcare Gmbh & Co. KgToothbrush
US7937795 *Jan 29, 2009May 10, 2011Colgate-Palmolive CompanyToothbrush
US7954196Mar 14, 2008Jun 7, 2011Michele Rene Nault-RichterMini multitask brush
US7962992 *Dec 23, 2005Jun 21, 2011The Procter & Gamble CompanyToothbrush with elastomer filled flexible head
US7988238Mar 11, 2009Aug 2, 2011Trisa Holding AgToothbrush and process for producing such a toothbrush
US8099820Jan 29, 2009Jan 24, 2012Colgate-Palmolive CompanyToothbrush
US8327492May 16, 2011Dec 11, 2012The Procter & Gamble CompanyToothbrush with elastomer filled flexible head
US8353075Jun 3, 2008Jan 15, 2013Colgate-Palmolive CompanyOral care implement
US8578544Jan 31, 2008Nov 12, 2013The Gillette CompanyOral hygiene implements having flexible elements, and methods of making the same
US20100262051 *Apr 9, 2010Oct 14, 2010L'orealMassage and cosmetic product dispensing assembly
USRE38521 *Jul 28, 1999May 25, 2004Lingner & Fischer GmbhToothbrush with resiliently flexible head
USRE42985Dec 20, 2002Dec 6, 2011Trisa Holding AgToothbrush and process for producing such a toothbrush
USRE44346Dec 20, 2002Jul 9, 2013Trisa Holding AgToothbrush and process for producing such a toothbrush
CN100479701CAug 8, 2003Apr 22, 2009高露洁-棕榄公司Toothbrush
WO2004014183A1Aug 8, 2003Feb 19, 2004Colgate Palmolive CoFlexible toothbrush
WO2004019801A2Aug 26, 2003Mar 11, 2004Colgate Palmolive CoToothbrush with flexible membrane
WO2004110210A1 *Jun 7, 2004Dec 23, 2004Woon LeeA variable toothbrush
WO2009148439A1 *Jun 3, 2008Dec 10, 2009Colgate-Palmolive CompanyOral care implement
Classifications
U.S. Classification15/167.1, 15/172, 15/201
International ClassificationA46B9/04, A46B7/06
Cooperative ClassificationA46B5/0025, A46B2200/1066, A46B9/04, A46B9/026, A46B7/06
European ClassificationA46B5/00B1, A46B9/02D, A46B7/06, A46B9/04
Legal Events
DateCodeEventDescription
Sep 27, 2012FPAYFee payment
Year of fee payment: 12
Sep 18, 2008FPAYFee payment
Year of fee payment: 8
Sep 29, 2004FPAYFee payment
Year of fee payment: 4
Jul 31, 1997ASAssignment
Owner name: PROCTER & GAMBLE COMPANY, THE, OHIO
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:GELDER, MARIA VAN;MORGAN, KIRSTIE JANE;REEL/FRAME:008625/0722
Effective date: 19960910